Hoboken is super easy to get to from NYC. I live in NYC and I used to work in Hoboken or about two years, it's just a couple stops on the Path train. It's not uncommon for Hoboken companies to list NYC as a result, because it's still in the same metro area.
Thanks! FWIW, I think that means you're required to comply with NYC's pay transparency laws and provide salary ranges. https://dol.ny.gov/pay-transparency